Effect of inoculum and substrate/inoculum ratio on the performance and methanogenic archaeal community structure in solid state anaerobic co-digestion of tomato residues with dairy manure and corn stover
文献类型： 外文期刊
作者： Li, Yangyang 1 ; Wang, Yanqin 1 ; Yu, Zihan 1 ; Lu, Jiaxin 1 ; Li, Danyang 1 ; Wang, Guoying 1 ; Li, Yu 1 ; Wu, Yue 3 ; Li, 1 ;
作者机构： 1.China Agr Univ, Beijing Key Lab Farmland Soil Pollut Prevent & Re, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
2.Shandong Acad Agr Sci, Inst Agr Resource & Environm, Jinan 250100, Shandong, Peoples R China
3.Marquette Univ, Dept Mech Engn, Milwaukee, WI 53233 USA
4.Ohio State Univ, Dept Food Agr & Biol Engn, Wooster, OH 44691 USA
关键词： Solid state anaerobic digestion; Inoculum; Substrate/inoculum ratio; Microbial community structure; On farm organic waste
期刊名称：WASTE MANAGEMENT （ 影响因子：7.145； 五年影响因子：7.907 ）
ISSN： 0956-053X
年卷期： 2018 年 81 卷
页码：
收录情况： SCI
摘要： Effects of methanogenic community of inoculum (liquid anaerobic digestion effluent (L-AD effluent), waste activated sludge (WAS), and anaerobic granular sludge (AGS)) and substrate/inoculum ratio (S/I) on reactor performance in solid state anaerobic digestion (SS-AD) were investigated. L-AD effluent, which can provide sufficient microbes and enough buffering capacity to the reactor at an S/I ratio of 6, was found to quickly initiate SS-AD processes. The highest methane production was obtained in reactor inoculated with WAS at an S/I ratio of 2. Higher volatile fatty acids and total ammonia nitrogen concentrations were found when AGS was used as inoculum, which led to a low methane production. Methanosaetaceae, Methanosaetaceae, and Methanosaetaceae together with Methanobacteriaceae were the dominant methanogens in reactors inoculated with L-AD effluent, WAS, and AGS, respectively. These findings suggest among the three inoculum, L-AD effluent is the most effective inoculum for SS-AD of on farm organic waste. (C) 2018 Elsevier Ltd. All rights reserved.
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